急啊，那位老兄帮帮我
<%@ Page Language= "C# " AutoEventWireup= "true " CodeFile= "img.aspx.cs " Inherits= "img " %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml " >
<head runat= "server ">
<title> 无标题页 </title>
<script language= "javascript " type= "text/javascript ">
function myclick(srcelement)
{
var targetid,srcelement,targetelement;
var strbuf;
if(srcelement.className == "outline ")
{
targetid = srcelement.id+ "d ";
targetelement = document.all(targetid);
if(targetelement.style.display== "none ")
{
strbuf = srcelement.src;
if(strbuf.indexOf( "plus.gif ")> -1)
{
srcelement.scr = "menu/tree_minusl.gif ";//图片为减号
targetelement.style.display= ' ';
}
else
{
srcelement.src = "menu/tree_minus1.gif ";
}
}
else
{
targetelement.style.display = "none ";
strbuf = srcelement.src ;
if(strbuf.indexOf( "minus1.gif ")> -1)
srcelement.src= "menu/tree_plus.gif ";//图片为加号
else
srcelement.src= "menu/tree_plusl.gif ";
}
}
}
</script>
</head>
<body>
<form id= "form1 " runat= "server ">
<TABLE class=small cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD> <IMG class=outline id=MEMU_03 style= "CURSOR: hand "
onclick= "myclick(this) " src= "menu/tree_plus.gif "> </TD>
<TD> <IMG height=17 alt=工作流 src= "menu/workflow.gif " width=19
border=0> </TD>
<TD colSpan=3> <A href= "javascript:myclick(MEMU_03) "> 工作流 </A>
</TD> </TR> </TBODY> </TABLE>
<TABLE class=small id=MEMU_03d style= "DISPLAY: none " cellSpacing=0
cellPadding=0 border=0>
<TBODY>
<TR>
<TD>
<TABLE class=small cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD> <IMG src= "menu/tree_line.gif " border=0> </TD>
<TD> <IMG src= "menu/tree_blank.gif "> </TD>
<TD> <IMG height=17 alt=新建工作 src= "menu/workflow.gif "
width=19 border=0> </TD>
<TD colSpan=2> <A
href= "javascript:openURL( 'img.aspx ') "> 新建工作 </A> </TD> </TR> </TBODY> </TABLE>
</TD> </TR> </TBODY> </TABLE>
</form>
</body>
</html>
为什么加号图片变不成减号，帮我看看代码有问题吗
请不要考虑图片不存在的问题
谢谢！
[解决办法]
srcelement.scr
====================
srcelement.src
注意拼写
debugger一下也能发现